Question

The sum of two numbers is 11 and their differnce is 5

Answer 1

x+y=11

x=11-y

x-y=5

11-y-y=5

2y=6

y=3

x=11-3=8

Answer 2

Answer:

x+y=11

x-y=5

adding both eq

2x=16

x=8

y=3